PFD

PFD, Bactericides for HLB are Top Citrus Grower Concerns

Ernie NeffCitrus, Citrus Greening, Pests

Postbloom fruit drop (PFD), along with the use of bactericides to control HLB, were the big issues for more than 40 participants in a grower roundtable Wednesday in Wauchula. LeAnna Himrod, one of the roundtable hosts, summarizes the issues addressed. Regarding bactericides, she reports: “There were a lot of questions about the bactericides regarding timing: What’s the best time of …

Disrupting Psyllid Mating to Control HLB

Josh McGillCitrus, Citrus Greening

By: R. W. Mankin, B. Rohde and S. McNeill The Asian citrus psyllid (ACP) is the primary vector of the devastating huanglongbing (HLB) disease of citrus. Efficient monitoring of ACP at low population densities is essential to conduct management programs with timely effectiveness for protection of Florida groves. Extensive research is being conducted to better understand ACP biology and behavior, …

Effect of HLB: Citrus Land Sales Up, Prices Down

Kelsey FryCitrus

Increased citrus land sales in 2015 at substantially lower prices show some citrus growers, especially smaller ones, are capitulating to HLB, says Dean Saunders of Coldwell Banker Commercial Saunders Real Estate. Saunders’ company released the land sales data at its annual Lay of the Land Conference on Friday. Sponsored ContentTake the Sting Out of Fire AntsMarch 6, 2026Grower Results With …

Why Florida Citrus Will Survive HLB

Kelsey FryCitrus

Speaking at the Citrus Growers’ Institute in Avon Park on Tuesday, University of Florida genetics researcher Fred Gmitter asked the question, “Will Florida’s citrus industry survive HLB?” In an interview after his presentation, he gave several reasons why he thinks the citrus industry will not only survive HLB, but thrive. Sponsored ContentTake the Sting Out of Fire AntsMarch 6, 2026Grower …

Citrus Grower Practices and HLB – What Works?

Kelsey FryCitrus

The Citrus Research and Development Foundation (CRDF) over the next year will try to find a method of determining what individual citrus grower practices have been successful against HLB, CRDF Chief Operations Officer Harold Browning reports. Download Audio

CRAFT

CRAFT Discussed at Florida Citrus Show

Daniel CooperCRAFT, Events, Florida Citrus Show

The Florida Citrus Show provided an opportunity for Citrus Research and Field Trial Foundation (CRAFT) Executive Director Steven Hall to share the organization’s accomplishments and future plans. Hall moderated a panel discussion and spoke about the organization’s work. “Thanks to Florida Agriculture Commissioner Wilton Simpson, Senate President Ben Albritton, the Florida Legislature and Gov. Ron DeSantis, we’ve been able to …

ascorbic acid

Study Sheds Light on the Use of Ascorbic Acid With OTC

Daniel CooperHLB Management, Research

Growers have always been innovators, testing new production practices in their groves. When you add a disease like HLB, those experiments get ramped up in the effort to seek solutions. A good example of this was a discussion that began last year among growers that ascorbic acid (vitamin C) might be helpful in extending the effectiveness of the oxytetracycline (OTC) …

Start Phytophthora Management Soon

Daniel CooperDiseases, Tip of the Week

By Megan Dewdney It was a difficult winter for many citrus trees in Florida, with freeze damage and very dry weather stressing them. Trees will be flushing as much as they can to replace the damaged canopy lost over the winter. This means they will be drawing strongly on the bank of carbohydrates in the roots. The spring 2026 root …

traits

Citrus Traits To Be Studied in Australia

Daniel CooperBreeding, Research

Queensland University of Technology (QUT) Professor Peter Prentis will lead a $2.2 million study to investigate the genetic basis of several citrus traits. This includes disease resistance and plant growth habits.  QUT researchers will work with members of the CRC Future Food Systems and Superior Production PTY LTD. The project is titled “Elucidating the genetic basis of disease, dwarfing, seedlessness …

varieties

CITRUS NURSERY SOURCE: Important Details About Newly Available Citrus Varieties

Daniel CooperCitrus Nursery Source, Varieties

By Peter Chaires There are presently two groups of University of Florida (UF) citrus varieties, licensed to Florida citrus nurseries via New Varieties Development & Management Corp. (NVDMC), the licensing designee of the Florida Department of Citrus. These include: GROUP ONE Get more details on group one in the February 2025 Citrus Nursery Source article. GROUP TWO Find more information …

improve

Improve Water and Nutrient Retention With Compost and Biochar

Daniel CooperHLB Management, Soil Health, Tip of the Week

By Tripti Vashisth, Abhishek Neupane and Taylor Livingston Florida citrus trees are under pressure from huanglongbing (HLB). The disease weakens root systems, reducing the tree’s ability to take up water and nutrients. Compounding this issue, most Florida groves sit on sandy soils with very little organic matter. These soils drain quickly, struggle to hold nutrients and allow both water and …

PGR

Match the PGR to the Purpose at the Proper Time

Daniel CooperPGRs

By Tripti Vashisth and Prudhvi Vulchi Plant growth regulators (PGRs) have become an important management tool for Florida citrus growers facing the challenges of huanglongbing (HLB). HLB disrupts the tree’s hormonal balance by reducing growth-promoting hormones like cytokinin and gibberellins and increasing stress-related hormones. This imbalance weakens carbohydrate transport, reduces sink strength and accelerates canopy decline. PGRs can help restore …

control

Pest Control in Protected Production Systems

Daniel CooperCUPS, IPCs, Pests

In a recent virtual presentation, entomologist Jawwad Qureshi discussed monitoring and control measures for citrus pests in trees under individual protective covers (IPCs) and in citrus under protective screen (CUPS). Qureshi is an associate professor at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Southwest Florida Research and Education Center in Immokalee. MONITORING METHODS Qureshi’s noted that …

Florida Citrus Show

Last Chance to Preregister for the Florida Citrus Show

Daniel CooperEvents, FCS24, Florida Citrus Show

The Florida Citrus Show is just a week away. Preregistration for the event ends on Sunday, March 8. So, sign up now to skip the onsite registration process. The event is on March 12 at 8:00 a.m. at the University of Florida Institute of Food and Agricultural Sciences Indian River Research and Education Center and the U.S. Department of Agriculture-Agricultural …

plan

Georgia Needs Management Plan for Citrus Greening

Daniel CooperGeorgia, HLB Management

Citrus greening disease has yet to find its footing in Georgia’s commercial citrus. But if it does, Georgia’s growers need a plan in place to manage the disease. Lindy Savelle, executive director of the Georgia Citrus Association (GCA), emphasized that message during last week’s GCA annual meeting in Tifton. “There is a very small amount of the disease in commercial …

ambrosia

After Freeze, Ambrosia Beetles Are Potential Threat

Daniel Cooperfreeze, Pests

Florida citrus growers should be on the lookout for an uncommon citrus pest following the recent freeze events that devastated crops throughout the state. During a recent postfreeze webinar hosted by the University of Florida Institute of Food and Agricultural Sciences Citrus Team, Lauren Diepenbrock, associate professor and entomologist, warned growers about the ambrosia beetle. This pest can prey on …

plant defense

Plant Defense To Increase Citrus Performance

Daniel CooperProduction

The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently issued an article, Science‑Based Plant Defense So Your Crops Perform Better. The authors are multi-county citrus Extension agent Edwin Gutierrez-Rodriguez and Jonael Bosques-Mendez, a county Extension director. Edited excerpts follow:   ROOTS AND WATER Plant roots are strategic. They possess the structure and ability to alter their growth …

March

Sneak Peek: March 2026 Citrus Industry

Daniel CooperSneak Peek

Citrus and other specialty crops suffered large losses from the late January/early February freeze that walloped Florida. Get the details in the cover story of the March issue of Specialty Crop Grower magazine. The article provides the early estimates of damage by crop according to the Florida Department of Agriculture and Consumer Services. It also discusses efforts to secure financial …

survey

Citrus State of the Industry Survey, Part 2: Planting Intentions

Daniel CooperSurvey

The 2025–26 State of the Citrus Industry Survey asked growers if they are planting and what their variety and rootstock selections are. It also surveyed growers on their sentiments about the future of citrus in Florida. Following are some highlights from the survey which was conducted in the fall of 2025. (See Part 1 of survey results here). Growers’ preference …

Florida Citrus Show

Earn Continuing Education Units at the Florida Citrus Show

Daniel CooperEvents, FCS24, Florida Citrus Show

The Florida Citrus Show is only two weeks away, scheduled for March 12. The event will be held at the University of Florida Institute of Food and Agricultural Sciences Indian River Research and Education Center and the U.S. Department of Agriculture-Agricultural Research Service U.S. Horticultural Research Laboratory in Fort Pierce. The educational seminars have much to offer for both citrus …